{% extends "layout.html" %}

{% block main %}

<div class="jumbotron" >
    <h1>用点心操作！ok？</h1>
    <h1>{{errormessage}}</h1>
    <p><a class="btn btn-primary btn-lg" href="javascript:window.history.back()" role="button">返回上一步</a></p>
</div>

{% endblock %}